Presence of an intrauterine device
does not increase the risk of vaginal infections; it is the genital hygiene that determines it. Since you have irritation along with the spotting, you will need a local examination by a specialist to see if there is any local cause like vaginitis
, polyp, erosion or cervicitis
responsible. The intactness of the IUD also can be checked alongside. If there is any cycle disturbance, a blood test
for pregnancy should be performed along with a trans-vaginal sonogram to exclude/confirm pregnancy. Hope you find this information useful. Take care.